Kashiwa-no-ha Dark Matter and Cosmology Symposium (Satellite workshop of COSMO 2024)

28 Oct 2024, 08:00 → 1 Nov 2024, 18:00 Asia/Tokyo

Lecture Hall (Kavli IPMU)

Kashiwa-no-ha Dark Matter and Cosmology Symposium (Satellite workshop of COSMO 2024)

Thanks for your participation in the Kashiwa-no-ha Dark Matter and Cosmology Symposium 2024!

Rationale

The Kashiwanoha Dark Matter and Cosmology Symposium is a continuation of the Kashiwa Dark Matter Symposium. The Kashiwa Dark Matter Symposium is a yearly conference that started in 2019 sponsored by ICRR (+grants). From 2024, this conference is organized by IPMU and while maintaining the original goals, we are also expanding the scope to include topics relevant for the researchers at IPMU. The Kashiwanoha Dark Matter and Cosmology symposium series has the goal to regularly bring together international researchers from all relevant experimental and theoretical fields in current and future dark matter searches and cosmology. This year, we will have a special symposium since we are combining it with the “Satellite workshop of COSMO 2024” which will bring international researchers attending COSMO 2024 in Kyoto to IPMU. We believe this is a great opportunity to have a very strong line up of speakers and participants in cosmology and dark matter at IPMU.

Dates

October 28 – November 1, 2024

Topics

• Early Universe Cosmology
• Large Scale Structure
• Gravitational Waves
• Modified Gravity & Dark Energy
• Observational Cosmology
• Numerical Cosmology
• Near Field Cosmology
• Dark Matter Theory
• Dark Matter Experiments

Speaker List

Invited speaker list (as of 2024-09-26):

• Ana Achucarro - Leiden Univ.
• Laura Baudis - Zurich Univ.
• Angelo Caravano - Paris, Inst. Astrophys.
• Tomohiro Fujita - Ochanomizu University
• Oksana Iarygina - Nordita
• Tomohiro Inada - CERN
• Miho Ishigaki - National Astronomical Observatory of Japan, Kavli IPMU
• Laura Jeanty - U. Oregon
• Leah Jenks - Chicago U., KICP
• Matthew Johnson - Permiter Institute
• Alexander Kusenko - University of California, Los Angeles (UCLA), Kavli IPMU
• Nick Krokon - IAS
• Meng-Xiang Lin - University of Pennsylvania
• David Marsh - Stockholm U.
• Scott Melville - Queen Mary, U. of London
• Shinji Mukohyama - Kyoto University, Yukawa Institute for Theoretical Physics (YITP), Kavli IPMU, Institute for Cosmic Ray Research (ICRR)
• Camila P. Novaes - Sao Jose, INPE
• Gonzalo Palma - Universidad de Chile
• Larissa Santos - University of Yangzhou
• Gabi Sato-Polito - Institute for Advanced Study
• Xi Tong - Cambridge University
• Yuko Urakawa - KEK, Tsukuba and Sokendai, Tsukuba
• Amanda Weltman - University of Cape Town
• Lu Yin - Asia Pacific Center for Theoretical Physics (APCTP)
• Noriko Y. Yamasaki - QUP, ISAS/JAXA
• (IPMU Colloquium) Leszek Roszkowsk - Astrocent, CAMK PAN & NCBJ

On-site Venue

The on-site symposium will take place at the Lecture Hall of Kavli IPMU, The University of Tokyo, Kashiwa Campus (5-1-5, Kashiwanoha, Kashiwa-shi, Chiba, 277-8584, Japan).

Online Venue

This symposium will be held in a hybrid format. Details will be announced soon.

Due to operational constraints, We limit remote presentations to invited speakers only.

Registration Fee

free

Organizers

• Shigeki Matsumoto (chair, IPMU)
• Elisa Ferreira (chair, IPMU)
• Ippei Obata (chair, IPMU)
• Kento Asai (ICRR)
• Andrew Eberhardt (IPMU)
• Kohei Hayashi (Sendai)
• Anamaria Hell (IPMU)
• Nagisa Hiroshima (YNU)
• Shunichi Horigome (IPMU)
• Qiuyue Liang (IPMU)
• Maria Mylova (IPMU)
• Tadayuki Takahashi (IPMU)

Sponsors

This symposium is supported in part by:

• MEXT Grant-in-Aid for Scientific Research (A)
  • 20H00153 for Tadayuki Takahashi (PI), Shigeki Matsumoto (co-PI)
  • 24H00244 for Tadayuki Takahashi (PI)
• MEXT Grant-in-Aid for Scientific Research (B)
  • 23K20232 for Shigeki Matsumoto (PI), Kohei Hayashi (co-PI)
• MEXT Grant-in-Aid for Scientific Research (Early-Career Scientists)
  • 19K14702 for Ippei Obata (PI)
  • 21K13909 for Kohei Hayashi (PI)
  • 22K14035 for Nagisa Hiroshima (PI)
• MEXT Grant-in-Aid for Transformative Research Area A
  • 20H05852 for Nagisa Hiroshima
• MEXT Grant-in-Aid for Transformative Research Area A (Open-solicited Research)
  • 23H04009 for Kohei Hayashi (PI)

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pdf FloorMap.pdf Posters.pdf

Monday 28 October

08:30 → 08:50 Registration

08:50 → 09:00 Opening Remark

09:00 → 10:00 Early Universe Cosmology: Plenary 1-2

Convener: Maria Mylova

09:00 Multifield inflation attractors, and detractors (IPMU APEC seminar)

Inflation remains the favoured explanation for the origin of the primordial density fluctuations that seeded all large-scale structures in the universe. A precise connection between inflation and particle physics (and quantum gravity) would give a unique observational window into physics at the highest energies. After a general introduction to multifield scenarios, I will discuss recent progress on novel inflationary attractors, and how to find them.

Speaker: Ana Achucarro (Leiden University)

09:30 Regularizing infrared divergences in de Sitter spacetime

Speaker: Gonzalo Palma (Universidad de Chile)

10:00 → 10:30 Coffee break

10:30 → 11:00 Dark Matter Experiments: Plenary 3

Convener: Anamaria Hell

10:30 Recent developments in BSM searches from the LHC

Speaker: Laura Jeanty (University of Oregon)

11:00 → 12:00 Modified Gravity & Dark Energy: Plenary 4-5

Convener: Anamaria Hell

11:00 Extending EFT of inflation/dark energy to arbitrary background with timelike scaler profile

Speaker: Shinji Mukohyama (Yukawa Institute for Theoretical Physics, Kyoto University)

11:30 Fast Radio Bursts : Novel Probes of Dark Matter

Speaker: Amanda Weltman (University of Cape Town)

12:00 → 12:15 Group photo

12:15 → 14:00 Lunch break

14:00 → 15:00 Gravitational Waves: Plenary 6-7

Convener: Ippei Obata

14:00 TBD (cancelled)

Speaker: Gabriela Sato-Polito (Institute for Advanced Study)

14:30 Gravitational Wave Probes of Parity Violation

Speaker: Leah Jenks (University of Chicago)

15:00 → 15:30 Coffee break

15:30 → 16:30 Numerical Cosmology: Plenary 8-9

Convener: Elisa Ferreira

15:30 Backreaction and Cosmic Butterflies: what simulations can tell us about inflation

Speaker: Angelo Caravano (Institut d'Astrophysique de Paris (IAP))

16:00 Can we see extragalactic carbon monoxide in the CMB?

Speaker: Nickolas Kokron (Institute for Advanced Study)

Tuesday 29 October

09:00 → 10:00 Large Scale Structure: Plenary 10-11

Convener: Qiuyue Liang

09:00 New physics about EDE from the Cosmic Birefringence

Speaker: Lu Yin (Shanghai Univeristy/ APCTP)

09:30 Anisotropy of Pulsar Timing Arrays and its correlation with Galaxy Surveys

Speaker: Meng-Xiang Lin (University of Pennsylvania)

10:00 → 10:30 Coffee break

10:30 → 12:00 Observational Cosmology: Plenary 12-14

Convener: Shunichi Horigome

10:30 Likelihood-free inference with HSC weak lensing

Speaker: Camila Paiva Novaes (National Institute for Space Research)

11:00 Foreground removal in 21cm future experiments

Speaker: Larissa Santos (Yangzhou University)

11:30 Dipoles and Dark Sectors: Fundamental Physics with the Secondary CMB

Speaker: Matthew Johnson (York University and Perimeter Institute)

12:00 → 14:00 Lunch break

14:00 → 15:00 Modified Gravity / Gravitational Waves: Parallel B

Convener: Qiuyue Liang

14:00 From White Dwarfs to Fast Radio Bursts: Unveiling the Impact of Energy Scale on Fundamental Constants

Speaker: Surajit Kalita (University of Cape Town, South Africa)

14:15 Testing the Gaussianity of a stochastic gravitational wave background

Speaker: Reginald Christian Bernardo (APCTP)

14:30 Probing Ultralight Dark Matter with Gravitational Waves

Speaker: Xing-Yu Yang (Korea Institute for Advanced Study)

14:45 Memory signal from GRB jets and soft-graviton theorem results

Speaker: Subhendra Mohanty (Indian Institute of Technology, Kanpur)

14:00 → 15:00 Observational Cosmology: Parallel A

Convener: Shunichi Horigome

14:00 A visual tool for assessing tension-resolving models in the H0-σ8 plane

Speaker: Leila Graef (Universidade Federal Fluminense)

14:15 Describing the evolution of the Large Scale Structure with Evolution Mapping

Speaker: Andrea Pezzotta (Max Planck Institut für Extraterrestrische Physik (MPE-Garching))

14:30 Early Results from the Simons Observatory SATs

Speaker: Susanna Azzoni (Princeton University)

14:45 Cosmological Constraints from the Void Size Function

Speaker: Sofia Contarini (Max Planck Institute for Extraterrestrial Physics)

15:00 → 15:30 Coffee break

15:30 → 16:30 Dark Matter Theory: Parallel D

Convener: Kento Asai

15:30 Memory burden effects and new mass ranges of PBH dark matter

Speaker: Kazunori Kohri (NAOJ / KEK)

15:45 Tidal Evolution of Subhalos in a Fuzzy Dark Matter Milky Way halo

Speaker: Victor Robles (Rensselaer Polytechnic Institute)

16:00 Cosmological simulations with Ultra-light dark Matter

Speaker: Erick Munive Villa (CEICO-FZU)

16:15 Sub-GeV Dark Sink Dark Matter

Speaker: Robert McGehee (University of Minnesota)

15:30 → 16:30 Numerical Cosmology: Parallel C

Convener: Joaquin Armijo

15:30 The interplay of massive neutrinos and dark matter in large-scale structure

Speaker: Adrian Bayer (Princeton University / Simons Foundation)

15:45 Structure formation in spin-1 and spin-2 ULDM

Speaker: Jessica Nayely Lopez Sanchez (Central European Institute for Cosmology and Fundamental Physics-FZU)

16:00 Smashing spin 2 ultra-light dark matter solitons

Speaker: Federico Urban (Central European Institute for Cosmology and Fundamental Physics)

16:15 Simulations of Non-Spherical Primordial Black Hole formation

Speaker: Albert Escriva (Nagoya University)

16:30 → 18:00 Poster 1

16:30 Probing non-standard cosmology through sub-earth halos

Speaker: Arpan Hait (Indian Institute of Technology Kanpur)

Poster_IPMU.pdf

16:50 Mediator Decay through mixing with Degenerate Spectrum

Speaker: Yuki Watanabe (The University of tokyo)

17:10 Testing the consistency between SDSS and DESI BAO measurements

Speaker: Basundhara Ghosh (Indian Institute of Science)

Ghosh_poster_sdss_bao.pdf

17:30 Clockwork inspired extra dimension models at future lepton colliders, beam dumps, and SN1987

Speaker: Krzysztof Jodlowski (IBS CTPU-PTC)

COSMO24_Jodlowski_poster.pdf

17:40 A Bayesian estimator for non-linear regression with errors in variables in cosmology

Speaker: Ujjwal Kumar Upadhyay (Indian Institute of Science, Bangalore)

UKU_Poster.pdf

17:40 A Hubble diagram from the cross-correlations of galaxies and dark sirens

Speaker: João Ferri (Institute of Physics, University of São Paulo)

Poster_COSMO24_.pdf

17:40 A Novel Non-Fourier Framework to Address Lightcone Effects in 21cm Observations

Speaker: Mattéo Blamart (McGill University)

Poster_Matteo_Blamart.pdf

17:40 BINGO radio telescope

Speaker: Alcides Vicente de Mello (Universidade de São Paulo)

Kashiwa_no_ha_Dark_Matter_and_Cosmology_Symposium-3.pdf

17:40 Boosted Dark Matter in White Dwarfs

Speaker: Shihwen Hor (The University of Tokyo)

boostedDM2.pdf

17:40 Constraining Ultra-Light Dark Matter using Astrophysical Surveys

Speaker: Fernanda Lima Matos (Universidade de São Paulo)

Poster-emulatorsforULDM.pdf

17:40 Deep Neural Networks Hunting Ultralight Dark Matter

Speaker: Pavel Kus (Institute of Physics of the Czech Academy of Sciences, Prague)

POSTER_PavelKus_upload.pdf

17:40 Describing statistics of the non-linear cosmic velocity field with evolution mapping

Speaker: Matteo Esposito (Max Planck Institute for Extraterrestrial Physics)

Evol_mapping_poster_w_flaps_v1.pdf

17:40 From Axion Searches to Direct Detection: TES Technology at DESY

Speaker: Christina Schwemmbauer (Deutsches Elektronen Synchrotron DESY)

poster_kashiwa_version4.pdf

17:40 Generation of Ultrashort Laser Pulse using Optical Parametric Amplification toward ALP Searches via Stimulated Resonant Photon-Photon Scattering

Speaker: Airi Kodama (Hiroshima University)

17:40 Gravitational Leptogenesis and Primordial Gravitational Waves during PBH-induced reheating

Speaker: Suruj Jyoti Das (Institute for Basic Science, CTPU-PTC)

kashiwa_poster_suruj.pdf

17:40 Hunting Primordial Black Hole Dark Matter in Lyman-alpha forest

Speaker: Abhijeet Singh (Indian Institute of Science)

COSMO2024.pdf

17:40 Matter bounce scenario in modified f(R,T) gravity

Speaker: PRASANTA DAS (BITS Pilani, K K Birla Goa Campus)

Poster_fRT_portrait-156.pdf

17:40 Memory Burden Effect: A new window for light primordial black holes as dark matter

Speaker: Michael Zantedeschi (Tsung-Dao Lee Institute)

poster_memoryburden.pdf

17:40 On the impact of lensing on standard sirens measurements

Speaker: Sofia Canevarolo (Utrecht University)

poster_Canevarolo.pdf

17:40 Phenomenology of compact objects from a first order phase transition in the dark sector

Speaker: Jan Tristram Acuña (National Tsing Hua University)

AcunaKashiwaPoster-Fontv2-8.pdf

17:40 Refining cosmological measurements using black-hole recoils in active galactic nuclei disks

Speaker: Samson Leong (The Chinese University of Hong Kong)

poster_Kashiwanoha_online.pdf

17:40 Self Interacting Dark Matter and Dirac neutrinos via Lepton Quarticity

Speaker: Sujit Kumar Sahoo (Indian Institute of Technology Hyderabad)

main (1).pdf

17:40 Study of Rotation Curves Diversity Problem with SPARC and LITTLE THINGS in 3D Catalogs

Speaker: Azriel Dante (Bandung Institute of Technology)

Poster Dante Kashiwa-no-ha.pdf

17:40 The dynamics and detection possibility of a pseudo FIMP in presence of a thermal Dark Matter

Speaker: Dipankar Pradhan (IIT Guwahati)

17:40 Theory of gravity with nonminimal matter-nonmetricity coupling and the de-Sitter swampland conjectures

Speaker: Sanjay Mandal (Fukushima University)

168-poster-Sanjay Mandal.pdf

17:40 Thermal leptogenesis, dark matter and gravitational waves from an extended canonical seesaw

Speaker: Partha Kumar Paul (Indian Institute of Technology Hyderabad)

Kashiwa_v1.pdf

17:40 Towards a possible solution to the Hubble tension with Horndeski gravity

Speaker: Yashi Tiwari (Indian Institute of Science, Bangalore)

YT_Poster.pdf

Wednesday 30 October

09:00 → 10:00 Dark Matter Experiments: Plenary 15-16

Convener: Shigeki Matsumoto

09:00 TeV-scale Dark Matter Searches with High-Energy Gamma Rays

Speaker: Tomohiro Inada (CERN)

09:30 Direct dark matter detection experiments: status, results and future plans

Speaker: Laura Baudis (University of Zurich)

10:00 → 10:30 Coffee break

10:30 → 11:00 Dark Matter Experiments: Plenary 17

Convener: Andrew Eberhardt

10:30 Solar axion search utilizing TES microcalorimter with 57Fe absorbers

Speaker: Noriko Yamasaki (ISAS/JAXA)

11:00 → 12:00 Dark Matter Theory: Plenary 18-19

Convener: Andrew Eberhardt

11:00 Axion Relic Pockets -- A new theory of dark matter

Speaker: David Marsh (Stockholm University)

11:30 Searching for ultralight axion-like dark matter from birefringence

Speaker: Yuko Urakawa (KEK)

12:00 → 14:00 Lunch break

14:00 → 15:00 Dark Matter Theory: Parallel E

Convener: Shigeki Matsumoto

14:00 Revisiting Q-ball dark matter: closer look at interaction with ordinary matter

Speaker: Ayuki Kamada (University of Warsaw)

14:15 Searching for Planck-scale Mass Dark Matter with Large Liquid Scintillator Experiments like SNO+

Speaker: Meng Luo (University of Pennsylvania)

14:30 Nucleon Consumption and Mass-Energy Conversion Induced by Dark Matter

Speaker: Prof. Shao-Feng Ge (TDLI/SJTU)

14:45 Light Thermal Dark Matter and MeV Gamma-ray Detection

Speaker: Yu Watanabe (IPMU)

14:00 → 15:00 Topology / Statistical Isotropy: Parallel F

Convener: Elisa Ferreira

14:00 The Universe is Not Isotropic. Why?

Speaker: Glenn Starkman (Case Western Reserve University)

14:15 Almanac: Bayesian cosmology on the sphere

Speaker: Andrew Jaffe (Imperial College London/KEK (visitor))

14:30 Can the Topology of the Universe Affect the CMB?

Speaker: Javier Carrón Duque (Instituto de Física Teórica (IFT-CSIC))

14:45 Constraining the shape of the Universe using Circle Searches

Speaker: Deyan Mihaylov (Case Western Reserve University)

15:00 → 15:30 Coffee break

15:30 → 17:00 The Copernican Revolution, and how it almost became unnoticed and forgotten (IPMU Colloqium)

The Copernican Revolution — the heliocentric model of the Universe introduced by Nicolaus Copernicus — is considered as one of the most significant achievements in the history of science. And yet, as it comes out, it luckily happened despite many obstacles and even then it could have become unnoticed and forgotten. The year 2023 marked the 550th anniversary of the birth of Nicolaus Copernicus which gave us additional motivation to have a closer look at his highly extraordinary life and achievement.

https://research.ipmu.jp/seminar/?seminar_id=3185

Speaker: Leszek Roszkowski ((Particle Astrophysics Science and Technology Centre, Warsaw))

18:00 → 20:00 Banquet

Thursday 31 October

09:00 → 10:00 Dark Matter Theory: Plenary 20-21

Convener: Kento Asai

09:00 Ultralight Dark Matter Search: unconventional techniques and their theoretical challenges

In recent years, ultralight dark matter models have gained significant attention as a novel paradigm in dark matter research. These models produce signals distinct from the conventional WIMP dark matter, prompting the development of unconventional detection methods. In this talk, I will review several proposed and ongoing searches, with a particular focus on research conducted in Japan. Additionally, I will discuss the theoretical challenges that arise in these approaches, highlighting areas that require further exploration.

Speaker: Tomohiro Fujita (Ochanomizu University)

09:30 Dark matter in the form of primordial black holes: how they could be produced and how they can be detected

Speaker: Alexander Kusenko (UCLA and Kavli IPMU)

10:00 → 10:30 Coffee break

10:30 → 12:00 Early Universe Cosmology: Plenary 22-24

Convener: Maria Mylova

10:30 Axion inflation with non-Abelian gauge fields

Currently, the search for primordial gravitational waves is largely focused on detecting the parity-odd polarization pattern in the Cosmic Microwave Background—the B-modes. Accurately interpreting B-mode measurements depends heavily on understanding their production mechanisms. A particularly compelling scenario involves gravitational wave generation through the interaction of axion with gauge fields. I will discuss recent advances in axion inflation incorporating non-Abelian gauge fields, highlighting primordial gravitational wave background signatures and implications for primordial magnetogenesis.

Speaker: Oksana Iarygina (Nordic Institute for Theoretical Physics, Stockholm University)

11:00 Toward large signals at the cosmological collider

Speaker: Xi Tong (DAMTP, University of Cambridge)

11:30 Cosmological Scattering Amplitudes

Speaker: Scott Melville (Queen Mary University of London)

12:00 → 14:00 Lunch break

14:00 → 15:00 Dark Matter Experiments: Parallel H

Convener: Nagisa Hiroshima

14:00 PandaX-4T Experiment and its Recent Progress

Speaker: Qing Lin (University of Science and Technology of China)

14:15 The SABRE South Experiment at the Stawell Underground Physics Laboratory

Speaker: Kieran Rule (The University of Melbourne)

14:30 DMICA: exploring Dark Matter in natural muscovite MICA

Speaker: Shigenobu Hirose (JAMSTEC)

14:45 The Compton Spectrometer and Imager as a dark matter probe

Speaker: Robin Anthony-Petersen (University of California, Berkeley)

14:00 → 15:00 Early Universe Cosmology: Parallel G

Convener: Maria Mylova

14:00 Inflationary Models in Perturbative LVS

Speaker: Dibya Chakraborty (Indian Institute of Technology Madras)

14:15 A minimal solution to the axion isocurvature problem from a non-minimal coupling

Speaker: Maximilian Berbig (IFIC & University of Valencia)

14:30 Steepest Growth in the Primordial Power Spectrum from Excited States at a Sudden Transition

Speaker: Mattia Cielo (University of Naples & INFN & IFT - UAM, Madrid)

14:45 Dissipation and thermal corrections in warm chromoinflation

Speaker: Rudnei Ramos (Rio de Janeiro State University)

15:00 → 15:30 Coffee break

15:30 → 16:30 Dark Matter Theory: Parallel I

Convener: Andrew Eberhardt

15:30 Black Holes as Probes for Ultralight Dark Matter

Speaker: Bruno Bucciotti (Scuola Normale Superiore, Pisa)

15:45 Constraints on the Fraction of Fuzzy dark Matter from Halo Dynamics

Speaker: Yusuke Manita (Perimeter Institute)

16:00 Primordial Black Holes, Charge, and Dark Matter: Rethinking Evaporation Limits

Speaker: Jessica Santiago (National Taiwan University)

16:15 TBA

Speaker: Luna Zagorac (Perimeter Institute for Theoretical Physics)

15:30 → 16:30 Large Scale Structure: Parallel J

Convener: Nagisa Hiroshima

15:30 Ultra-light Axions in the Halo Bias

Speaker: Nicholas DePorzio (Boston University)

15:45 Phenomenology of Axion-Gauge interactions in the early universee

Speaker: Alexandros Papageorgiou (IFT Madrid)

16:00 Reconstruction of cosmological initial conditions with mean-field simulation-based inference

Speaker: Oleg Savchenko (GRAPPA, University of Amsterdam)

16:15 Non-linear evolution of primordial parity violation

Speaker: Sha Azyzy (Max Planck Institute for Astrophysics)

16:30 → 18:00 Poster 2

16:30 Discovery Potential for Decaying Dark Matter and Faint X-ray Sources with XRISM

Speaker: Yu Zhou (KEK)

DM_sensitivity_zhouyu_v2.pdf

16:50 MSc Dissertation Project: The Plotting and Analysis of Complex Spectral Curves from Black Holes through AdS/CFT Correspondence and Hydrodynamics

Speaker: Duoen Shou (University of Edinburgh)

Poster240915 (1).pdf

17:10 Measuring lensing convergence dispersion using auto-correlation of gravitational wave sources and cross-correlation between gravitational wave sources and galaxies

Speaker: Fumihiro Chuman (Department of Physics, Graduate School of Science, Chiba University)

kashiwanoha_poster.pdf

17:30 Perturbations in O(D,D) string cosmology from double field theory

Speaker: Stephen Angus (CQUeST, Sogang University)

Angus_KashiwanohaPoster.pdf

17:40 A Study of Cold, Fuzzy, and Self-Interacting Dark Matter Halos in Dwarf Galaxies

Speaker: Fahmi Muhammad Al Farisy (Institut Teknologi Bandung)

Poster Kashiwa Fahmi.pdf

17:40 A universal constraint on axion non-Abelian dynamics during inflation

Speaker: Martino Michelotti (University of Groningen)

Poster Michelotti.pdf

17:40 Alleviate S8 tension by introducing scale dependence beyond power-law in the primordial power spectrum

Speaker: Ryo Terasawa (Kavli IPMU)

poster_ipmu-2.pdf

17:40 Behaviour of Self-interacting Ultralight Bosonic Dark Matter in the Vicinity of a Black Hole

Speaker: Jianqiao Deng (CUHK)

17:40 Characterisation of the power spectrum of acoustically generated gravitational waves with a soft equation of state

Speaker: Lorenzo Giombi (University of Helsinki)

Poster_Kyoto.pdf

17:40 Characteristic Mass of Dark Matter Halos for the Cusp-Core Transition

Speaker: Michi Shinozaki (University of Tsukuba)

kashiwa-no-hasympo2024.pdf

17:40 Constraints on Extended Axion Structures from Lensing Effects of Fast Radio Burst

Speaker: Kuan-Yen Chou (National Tsing Hua University)

Kashiwanoha KYC FRB axion lesnig.pdf

17:40 Design of a pilot search for ALPs in the μeV wide-mass range with a x-band pairwise-circular-polarized dual-frequency focusing collider

Speaker: Takafumi Miyamaru (Hiroshima Univ.)

17:40 Gravitational Wave Sourced by Decay of Massive Particle from Primordial Black Hole evaporation

Speaker: Satyabrata Mahapatra (Sungkyunkwan University)

GW_PBH_Poster_Portrait_Satyabrata_Mahapatra.pdf

17:40 Implications of f(Q) Gravity on Cosmological Parameters

Speaker: Chaymae Karam (Mohammed V University of Rabat, Faculty of Sciences (High Energy Physics Team - Modeling and Simulation))

17:40 MeV gamma-ray background from the Moon in indirect dark matter detection

Speaker: Keigo Okuma (Nagoya University)

Kashiwa_DM_WS_okuma_v9.pdf

17:40 Neutrinos from the Sun can discover dark matter-electron scattering

Speaker: Akash Kumar Saha (Indian Institute of Science, Bengaluru, India)

DM_e_Scattering_Akash-1.pdf

17:40 Non-Gaussianity from primordial black holes

Speaker: Naoya Kitajima (Tohoku University)

17:40 Primordial Black Hole Formation from Power Spectrum with Finite-width

Speaker: Jianing Wang (Institute of Theoretical Physics, Chinese Academy of Sciences)

satellite-JNW.pdf

17:40 Search for dark matter decay and annihilation using observation by Tibet AS_{\gamma} and LHAASO

Speaker: ABHISHEK DUBEY (Indian institute of science, Bangalore)

DM_Abhishek_Dubey.pdf

17:40 Search for heavy dark matter with Fermi LAT

Speaker: Deheng Song (YITP, Kyoto U)

Fermi_HDM_Poster.pdf

17:40 Sommerfeld Effect in Composite Dark Matter

Speaker: Takumu Yamanaka (Osaka University)

kashiwaDM.pdf

17:40 Star-Crossed: Model-Independent Consistency of Supernova Cosmology

Speaker: William Luke Matthewson (Korea Astronomy and Space Science Institute)

SN Poster.pdf

17:40 Studies of the selection effect of galaxies on clustering analysis in a wide-area spectroscopic survey

Speaker: Kanmi Nose (Kavli IPMU)

selection_poster.pdf

17:40 Thermal Wash-in Leptogenesis via Heavy Higgs Decay

Speaker: Hidenaga Watanabe (SOKENDAI/KEK)

kashiwanoha2024final.pdf

17:40 Thermodynamic analysis of black holes with cloud of strings and quintessence via Barrow entropy

Speaker: USMAN ZAFAR (FUKUSHIMA University)

Poster_Presentation__USMAN_ZAFAR.pdf

17:40 Velocity statistics of cosmic large-scale structure from Hamiltonian particle dynamics

Speaker: Marvin Sipp (Institute for Theoretical Physics, Heidelberg University)

17:40 XLZD: A Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics

Speaker: Shingo Kazama (Nagoya University)

Friday 1 November

09:00 → 09:30 Near Field Cosmology: Plenary 25

Convener: Kohei Hayashi

09:00 The chemodynamical evolution of the outer Milky Way with Prime Focus Spectrograph

Speaker: Miho Ishigaki (NAOJ)

09:30 → 10:00 Dark Matter Experiments: Parallel L

Convener: Elisa Ferreira

09:30 From SuperMAG to SNIPE Hunt: Using the Earth to search for ultralight dark matter

Speaker: Saarik Kalia (University of Minnesota)

09:45 Venturing into the Neutrino Fog: First Measurement of Solar CEvNS with XENONnT

Speaker: Robert Hammann (Max-Planck-Institut für Kernphysik (MPIK))

09:30 → 10:00 Dark Matter Theory: Parallel K

Convener: Ippei Obata

09:30 Scalars remember the hot big bang

Speaker: David Cyncynates (University of Washington, Seattle)

09:45 Imprints of energy injection by compact dark stars during reionization

Speaker: Boris Betancourt Kamenetskaia (Technical University of Munich)

10:00 → 10:05 Poster Award Ceremony

10:05 → 10:30 Coffee break

10:30 → 11:30 Early Universe Cosmology: Parallel N

Convener: Maria Mylova

10:30 Decoherence of cosmological perturbations: boundary terms and the WKB wave functional

We revisit the decoherence of primordial scalar curvature and tensor perturbations in minimal single-field inflation, by considering the slow-roll unsuppressed non-Gaussian phase in their wave functional. The phase can be seen either from boundary (total time-derivative) terms in the action, produced by the usual integration-by-parts procedure, or the WKB approximation of the Wheeler-DeWitt equation. By tracing out unobserved degree of freedom which interacts with observed modes, such a phase can cause much faster cosmic decoherence, compared to those by bulk interactions. We thus provide a better estimation of the decoherence effect to some recent proposals probing the quantum nature of primordial perturbations such as the cosmological Bell test, showing a possible window of around 5 e-folds.
Related papers: JHEP 06 (2023) 101 (arXiv:2305.08071), JHEP 04 (2023) 092 (arXiv:2207.04435), arXiv:2405.07141"

Speaker: Chon Man Sou (Tsinghua University)

10:45 Emergent Cosmology from Quantum Gravity

Speaker: Luca Marchetti (University of New Brunswick)

11:00 Bouncing cosmology in VCDM: from construction to observational constraints

Speaker: Paul Martens (Chinese University of Hong Kong (CUHK))

11:15 Cosmology in an extended parameter space: new constraints with DESI BAO

Speaker: Shouvik Roy Choudhury (Academia Sinica Institute of Astronomy and Astrophysics)

10:30 → 11:30 Near Field Cosmology: Parallel M

Convener: Kohei Hayashi

10:30 Constraining dark matter models using dwarf galaxy properties

Speaker: Ariane Dekker (KICP, University of Chicago)

10:45 Formation of parallel stellar streams by an interaction with a dark matter subhalo

Speaker: Yuka Kaneda (University of Tsukuba)

11:00 Confronting the Diversity Problem: The Limits of Galaxy Rotation Curves as a Probe of Dark Matter

Speaker: Isabel Sands (Caltech)

11:15 A search for dark matter annihilation from the Sagittarius Dwarf and Stream

Speaker: Thomas Venville (Research School of Astronomy and Astrophysics, Australian National University)

11:30 → 12:45 Dark Matter Theory: Parallel O

Convener: Kohei Hayashi

11:30 Towards robust predictions for thermal production of multicomponent dark matter

Speaker: Andrzej Hryczuk (National Centre for Nuclear Research, Poland)

11:45 A Slightly Oblate Dark Matter Halo with a Core-like Inner Density Profile Revealed by Fine-Stratified Stellar Populations from Gaia DR3

Speaker: Hai-Xia Ma (Division of Particle and Astrophysical Science, Nagoya University)

12:00 Weak Lensing Constraints on Dark Acoustic Oscillation

Speaker: Yue-Lin Sming Tsai (Purple Mountain Observatory)

12:15 Robustness of the Galactic Center Excess Morphology Against Masking

Speaker: Yiming Zhong (City University of Hong Kong)

12:30 Phenomenology of bubble size distributions in a first-order phase transition

Speaker: Po-Yen Tseng (National Tsing Hua University)

11:30 → 12:45 Observational Cosmology: Parallel P

Convener: Elisa Ferreira

11:30 Impact of HWP systematics on the measured CMB polarization

Speaker: Marta Monelli (Kavli IPMU)

11:45 Dark matter physics with quadruply-imaged quasars

Speaker: Daniel Gilman (University of Chicago)

12:00 Constraining Ultralight ALP Dark Matter in Light of Cosmic Birefringence

Speaker: Dongdong Zhang (University of Science and Technology of China)

12:15 Identification and Study of Possible Dark Matter Deficient Dwarf Galaxies in SPARC and LITTLE THINGS catalogs

Speaker: Hesti Wulandari (Institut Teknologi Bandung)

12:30 Cosmic shear with Einstein rings

Speaker: Pierre Fleury (CNRS, LUPM)